Gearbox With Overdrive; Automatic Transmission - Volvo 164, 1970 Service Manual

Fig. 1-3. Gearbox
1. Filler plug
2. Drain plug
The flushing oil is added through the filler hole
(l, Fig. 1-3) after the drain plug has been screwed
back into position. The engine shou ld then be allowed
to run for 'a few minutes with one of the gears en-
gaged and both the rear wheels jacked up. The
engine should then be stopped, the rear whee ls
lowered and the oil drained out.
WARNING! On no account must only one of the rear
wheels of a vehicle .equipped with a differential brake
be jacked up since this transfers torque to the other
wheel in contact with the ground so that the vehicle
can topple of the jack.
Fill up with new oil after the drain plug (2) has been
screwed tightly ba' c k into position. The oil should
reach up to the filler hole (l). Screw the filler plug
tightly back into position.
Gear oil SAE 90 is used for the gea'rbox all the year
round. Where the air temperature is continously
below _10 0 C (14 0 F), SAE 80 should, however, ·be- used.
Alternatively engine oil with viscosity SAE 30 or multi-
grade oil SAE 20 W-40 can be used all the year
round.
The oil changing quantity is .6 litre (1.1 Imp.pints= 1.3
US pints).
GEARBOX WITH OVERDRIVE
To oheck the oil level, remove the fil!.er plug (1, Fig.
Fig. 1-4. Overdrive
1 : 2
1-3) and then check to see that the oil reaches up to
the ho le for the plug.
In the case of a new or recondition ed gearbox, :the
oil should b e changed a ffer the first 5 000 km (3 000
miles). The oil should subsequently be change,d after
every 40000 km (25000 miles).
The oil shou ld be drained off immediately affer the
car has been driven and while the oil is still warm.
To do this remove the plugs marked 1 and 2 in Fig .
1-3 as weH as the cover for the -o il strainer, se· e Fig.
1-4. Also clean the oi l strainer as indicated in group
4308.
Refit the drain plugs and bolt on the cover secure ly.
Fill with new oi/. Fill slowly to enable the oil to run
over into the overdrive. The oil should reach up to
the fill er hol e (1, Fig. 1-3). Screw tight th.e rfi ll er plu g.
For a gearbox with overdrive, engine oi l with visco-
sit y SAE 30 is used all the year round. As an a lterna-
tive, multigr·ade oil SAE 20 W -40 can be used . The oi l
chang in g quantity is 1.4 litres (2.46 Imp.pints-2.95
US pints).
A UTOMATIC TRAN SMISSIO N
Normally oil changing only needs to be carried out
when the transmission is recondi:tioned. The oil level,
on the other hand, should be checked afterev, e ry
10000 km (6000 miles).
The vehicle should stand leve!. Move the seledor
I· e ver to position lip" and I · e t the engine run art . i dling
speed. Wipe off the dipstick with a nylon cloth, paper
or chamois leather. Do not use waste or fluff y rags.
Insert the dipstick, pull it up and che,ck the oil leve!.
See Fig. 1-5. N.B. There are different levels for a warm
or cold transmission. For a wa'rm transmission, which
is the ca se after driving 8-10 km (5-7 miles), the
upper sedion · a pplies (3 and 4, Fig. 1-5). The lower
sedion (1 and 2, Fig. 1-5) app'lies to a cold transmis-
sion. The text on rthe dipstick will also remind you
of this.
VO LVO
103243
Fig. l-S. Checking the oil level
1. Max. oil level, cold transmission
2. Min . oil level, cold transmission
3. Max . oil level, varm transmission
4. Min oil level varm transmission
4